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ASCORBIC ACID meets EP/USP/BP/FCC standards
Analysis Items | Specfications | Analysis Results | |
1. | Characteristics | White or almost white crystals or crystalline powder | White crystalline powder |
2. | Identification | Positive | Positive |
3. | Clarity of Solution | Clear | Clear |
4. | Co lour of Solution | ≤BY7 | < BY7 |
5. | Melting point | 191°C-192°C | 191°C |
6. | Assay | 99.0%-100.0% | 99.7% |
7. | Acidity(PH) | 2.2-2.5 | 2.32 |
8. | Residue on Ignition | ≤0.1% | 0.01% |
9. | Specific Rotation | +20.5°C-+21.5°C | +21.40°C |
10. | Heavy Metals | ≤0.0003% | <0.0003% |
11. | Oxalic Acid | ≤0.2% | <0.2% |
12. | Copper | ≤0.0005% | <0.0005% |
13. | Iron | ≤0.0002% | <0.0002% |
14. | Lead | ≤2ppm | <2ppm |
15. | Organic Volatile Impurities | Meets USP 29 stipulation | Meets the requirements |
ASCORBIC ACID EP/USP/BP/FCC